Slipper



FIG. 1 is a perspective view of the slipper showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a top view.

The broken lines in the drawings depict portions of the slipper that form no part of the claimed design. The more closely spaced broken lines in the figure views depict stitching, which also forms no part of the claimed design. 

CLAIM The ornamental design for a slipper, as shown and described. 